Makefile: create basic 'build' and 'clean' targets

Popular convention in Go projects (including the 'project-layout' repository
[1]) seems to be using Makefiles for automating build/release tasks. In
anticipation of adding complex packaging scripts in future patches, create
an initial Makefile with 'build' and 'clean' targets.

Note that the 'build' target utilizes the 'GOOS' and 'GOARCH' of the
environment to allow generating executables for any supported Go platform,
defaulting to the current platform the build is running on. This behavior
will be critical in later patches, when we want to create MacOS ARM64
packages on MacOS Intel build machines.

[1] https://github.com/golang-standards/project-layout/blob/master/Makefile

Signed-off-by: Victoria Dye <[email protected]>

Author: vdye

.gitignore

@@ -1,2 +1,3 @@
 /git-bundle-server
 /git-bundle-web-server
+/bin/

Makefile

@@ -0,0 +1,22 @@
+# Default target
+build:
+
+# Helpful paths
+BINDIR := $(CURDIR)/bin
+
+# Platform information
+GOOS := $(shell go env GOOS)
+GOARCH := $(shell go env GOARCH)
+
+# Build targets
+.PHONY: build
+build:
+	$(RM) -r $(BINDIR)
+	@mkdir -p $(BINDIR)
+	GOOS="$(GOOS)" GOARCH="$(GOARCH)" go build -o $(BINDIR) ./...
+
+# Cleanup targets
+.PHONY: clean
+clean:
+	go clean ./...
+	$(RM) -r $(BINDIR)